| 摘要 |
A piston-cylinder unit includes a working cylinder, a damping piston mounted for movement in the cylinder, and a piston rod connected to the piston. An outer tube surrounding the working cylinder defines a compensating space, and a piston rod guide fitted to the working cylinder and the outer tube closes off an end of the compensating space, the piston rod guide having a bore communicating with the compensating space. An envelope body of variable shape, located in the compensating space, is filled with gas through a connecting element having a cylindrical portion fitted in the bore. The connecting element also has a lobe which is received through an elongate aperture in a retaining plate fitted over the bore when the connecting element is in a selected orientation, the lobe being axially retained under the plate by rotating the connecting element from the selected orientation.
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